Display Panel and Display Apparatus Having the Same

1. A display panel, comprising: a display substrate in a display area and a display circuit board electrically connected to the display substrate; a touch button in a touch button area and a touch button circuit board electrically connected to the touch button; a connecting line circling around a peripheral area to connect the display circuit board and the touch button circuit board, the connecting line connected to the touch button circuit board through a driving chip; a touch layer over the display substrate; and a touch control circuit board electrically connected to the touch layer, wherein the touch control circuit board is electrically connected to the touch button circuit board through the connecting line; wherein the connecting line is substantially outside of the display area, forming a connecting line area; and wherein the touch layer comprises a sense electrode layer and a drive electrode layer, the connecting line is in a same layer and comprises a same material as one of the sense electrode layer and the drive electrode layer.

2. The display panel of claim 1 , wherein the connecting line is in a same layer and comprises a same material as the sense electrode layer.

3. The display panel of claim 1 , wherein the connecting line is in a same layer and comprises a same material as the drive electrode layer.

4. The display panel of claim 1 , wherein a boundary of the connecting line area has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; the first side of the boundary of the connecting line area and the second side of the boundary of the connecting line area are substantially opposite to each other; and the third side of the boundary of the connecting line area and the fourth side of the boundary of the connecting line area are substantially opposite to each other.

5. The display panel of claim 1 , comprising: an upper polarizer on a light emitting side of the display substrate; wherein the display panel has an outline forming an outline area, the outline has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; the first side of the outline and the second side of the outline are substantially opposite to each other; the third side of the outline and the fourth side of the outline are substantially opposite to each other; a boundary of the upper polarizer has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; the first side of the boundary of the upper polarizer and the second side of the boundary of the upper polarizer opposite to each other, and the third side of the boundary of the upper polarizer and the fourth side of the boundary of the upper polarizer opposite to each other, each side of the boundary of the upper polarizer corresponding to each side of the outline; and the display panel further comprises a plurality of first bonding pads between the first side of the outline and the first side of the boundary of the upper polarizer; wherein the plurality of first bonding pads connect the display circuit board, the touch control circuit board, and the touch button circuit board to the connecting line.

6. The display panel of claim 5 , wherein the boundary of the upper polarizer further comprises a fifth side connecting the first side of the boundary of the upper polarizer and the fourth side of the boundary of the upper polarizer, the plurality of first bonding pads are at or about a corner between the first side and the fourth side of the outline.

7. The display panel of claim 6 , wherein an angle between the first side and the fifth side of the boundary of the upper polarizer is in a range of approximately 30° to approximately 60°.

8. The display panel of claim 5 , further comprising a plurality of second bonding pads between the second side of the outline and the second side of the boundary of the upper polarizer; wherein the plurality of second bonding pads connect the connecting line to the driving chip.

9. The display panel of claim 5 , wherein the display circuit board and the touch button circuit board are on two substantially opposite sides of the display area.

10. The display panel of claim 9 , further comprising: a touch layer over the display substrate; and a touch control circuit board electrically connected to the touch layer, wherein the touch control circuit board is electrically connected to the touch button circuit board through the connecting line; wherein the touch button circuit board is on a side of the display area substantially opposite to the display circuit board and the touch control circuit board.

11. The display panel of claim 10 , further comprising an upper polarizer on a light emitting side of the display substrate; wherein the display panel has an outline forming an outline area, the outline has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; a boundary of the connecting line area has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; a boundary of the upper polarizer has a first side, a fourth side, a second side, and a third side, in a clock-wise direction; the first side of the boundary of the connecting line area and the second side of the boundary of the connecting line area are substantially opposite to each other; the third side of the boundary of the connecting line area and the fourth side of the boundary of the connecting line area are substantially opposite to each other; the first side of the outline and the second side of the outline are substantially opposite to each other; the third side of the outline and the fourth side of the outline are substantially opposite to each other; the first side of the boundary of the upper polarizer and the second side of the boundary of the upper polarizer opposite to each other, and the third side of the boundary of the upper polarizer and the fourth side of the boundary of the upper polarizer opposite to each other, each side of the boundary of the upper polarizer corresponding to each side of the outline; and the display panel further comprises a plurality of first bonding pads between the first side of the outline and the first side of the boundary of the upper polarizer; wherein the plurality of first bonding pads connect the display circuit board, the touch control circuit board, and the touch button circuit board to the connecting line.

12. The display panel of claim 11 , wherein the boundary of the upper polarizer further comprises a fifth side connecting the first side of the boundary of the upper polarizer and the fourth side of the boundary of the upper polarizer, the plurality of first bonding pads are at or about a corner between the first side and the fourth side of the outline.

13. The display panel of claim 11 , further comprising a plurality of second bonding pads between the second side of the outline and the second side of the boundary of the upper polarizer; wherein the plurality of second bonding pads connect the connecting line to the driving chip.

14. The display panel of claim 5 , wherein the plurality of first bonding pads comprises a first group of side-by-side first bonding pads along a first direction and a second group of side-by-side first bonding pads along a second direction perpendicular to the first direction.

15. The display panel of claim 5 , wherein the plurality of first bonding pads comprises an array of first bonding pads.

16. The display panel of claim 5 , wherein a distance between any of the plurality of the first bonding pads and the first side of the boundary of the upper polarizer and an extended line thereof is ≥0.3 mm.

17. The display panel of claim 5 , wherein a distance between any of the plurality of the first bonding pads and the fourth side of the boundary of the upper polarizer and an extended line thereof is ≥0.3 mm.

18. The display panel of claim 1 , wherein the connecting line is completely outside of the display area.

19. A display apparatus, comprising the display panel of claim 1 .